KR20100136983A - Method and apparatus for providing multi-point haptic feedback texture systems - Google Patents

Abstract

A method and apparatus are disclosed for generating a haptic surface texture as a deformable surface layer. Haptic devices include a flexible surface layer, a haptic substrate, and a deformation mechanism. The flexible surface layer is made of an elastic material and can reconstruct its surface features. The haptic substrate, in one embodiment, provides a first pattern in response to the first activation signal. Alternatively, the haptic substrate may provide a second pattern in accordance with the second activation signal. The deformation mechanism is configured to change the flexible surface from the first surface feature to the second surface feature according to the first pattern.

Description

METHOD AND APPARATUS FOR PROVIDING MULTI-POINT HAPTIC FEEDBACK TEXTURE SYSTEMS}

[Cross reference to related application]

This application claims priority to US Utility Patent Application No. 12 / 061,463, filed April 2, 2008, which is incorporated herein by reference.

[Related Application]

This application relates to the following pending applications, each of which is assigned to the assignee of the present invention.

a. Application No. 11 / 823,192 filed on June 26, 2007, entitled "Method and Apparatus for Multi-touch Tactile Touch Panel Actuator Mechanisms" (Attorney Docket No. IMM255 (1057.P0002US));

b. Application No. 11 / 823,258 filed June 26, 2007, entitled "Method and Apparatus for Multi-touch Haptic Touch Panel Actuator Mechanisms" (Attorney Docket No. IMM272 (1057.P0003US)); And

c. Appl. No. 11 / 943,862, filed November 21, 2007, entitled "Method and Apparatus for Providing a Fixed Relief Touch Screen with Locating Features Using Deformable Haptic Surfaces" (Attorney Docket No. IMM290 (1057.P0014US)). .

[Field]

Exemplary embodiment (s) of the present invention relate to the field of electronic interface devices. More specifically, exemplary embodiment (s) of the present invention relate to an interface device having haptic feedback.

As computer-based systems, appliances, automated teller machines (ATMs), point of sale (POS) terminals, etc. have become more common in recent years, ease of use of human-machine interfaces has become more important. Conventional touch sensitive panels have a generally smooth and flat surface and use sensors such as capacitive sensors and / or pressure sensors to detect the position touched by finger (s) and / or object (s). For example, a user often presses an area of the touch screen with a fingertip to emulate a button press and / or moves the user's finger on the panel in accordance with a graphic displayed behind the panel on the display device.

In the real world, there is a wide range of surface textures. Textures are used to describe the visual structure as well as the tactile feel of various surfaces. Due to the human-computer interface device, users are presented with virtual textures in the form of images that are often displayed on computer screens. For example, an image of sandpaper and / or corduroy may be shown, but typically the user may not feel how the sandpaper or corduroy feels when he touches the display or touch screen. If a touch screen or surface is used, the texture of the screen may be felt as a typical smooth surface, which typically does not simulate the texture (s) of what is being displayed on the screen. Even if the touch screen or touch surface is coated with an artificial texture, such as a raised surface, the user can only sense one coated texture.

The problem associated with existing touch sensitive panels is that it does not provide the user with configurable texture information. Another problem associated with traditional touch sensing panels is that the user cannot provide input confirmation if the user enters input outside the visual cues or the audio cues when combined with a sound system. . For example, when a user presses a position on an existing touch sensitive panel, the panel cannot immediately confirm the selected input as a mechanical switch typically does.

A method and surface reconfigurable haptic device are disclosed that can provide a haptic texture using a deformable surface. Surface reconfigurable haptic devices include flexible surfaces, haptic substrates, and deformation mechanisms. Flexible surfaces are soft and elastic layers that can change their surface characteristics from one texture to another. The haptic substrate, in one embodiment, provides a first pattern in response to the first activation signal. Alternatively, the haptic substrate provides a second pattern in accordance with the second activation signal. The deformation mechanism is configured to change the flexible surface from the first surface feature to the second surface feature according to the first pattern.

Additional features and advantages of the exemplary embodiment (s) for the present invention will become apparent from the following detailed description, drawings, and claims.

While the exemplary embodiment (s) of the present invention will be more fully understood from the detailed description given hereinafter and from the accompanying drawings for the various embodiments of the present invention, this is not to be construed as limiting the present invention to the specific embodiments. No, it's just for explanation and understanding.
1A-1E illustrate a haptic device using a haptic substrate and a flexible surface in accordance with one embodiment of the present invention;
2A-2D illustrate cross-sectional views illustrating a haptic device having a deformable surface in accordance with one embodiment of the present invention;
3A-3F illustrate cross-sectional views illustrating another example of a haptic device using a deformable surface in accordance with one embodiment of the present invention;
4A-D illustrate examples of haptic cells in haptic devices using piezoelectric materials and “MEMS” (Micro-Electro-Mechanical Systems) devices in accordance with one embodiment of the present invention;
5A and 5B illustrate side views of a haptic device having an array of haptic cells having a thermal fluid bag in accordance with one embodiment of the present invention;
6A and 6B illustrate a haptic cell that generates a haptic effect using a Micro-Electro-Mechanical Systems (MEMS) pump in accordance with one embodiment of the present invention;
7 illustrates a side view for a haptic device having an array of haptic cells using a variable porous membrane in accordance with one embodiment of the present invention;
8 is a side view of a haptic device having an array of haptic cells using various resonant devices in accordance with one embodiment of the present invention;
9 is a flow diagram illustrating a process for providing a haptic texture to a deformable haptic surface in accordance with one embodiment of the present invention.

Exemplary embodiments of the invention are described herein in the context of a method, system, and apparatus for providing a haptic surface texture to a flexible surface.

Those skilled in the art will appreciate that the following detailed description of example embodiment (s) is merely illustrative and is not intended to be limiting in any way. Those skilled in the art having the benefit of this specification will readily appreciate other embodiments. Reference will now be made in detail to the implementation of example embodiment (s) as illustrated in the accompanying drawings. The same reference numerals will be used to refer to the same or similar parts throughout the drawings and the following detailed description.

For clarity, not all formal features of the implementation described herein are shown and described. Naturally, in the development of any such implementation, a number of implementation-specific decisions must be made to realize the developer's specific purpose, such as compliance with application- and business-related constraints, and those specific purposes are dependent upon the implementation and the developer. You will see that it will vary.

A user interface device is disclosed having a haptic textured surface on a surface layer that is deformable using various haptic actuators. The device includes a flexible surface layer, a haptic substrate, and a deformation mechanism. The flexible surface layer is made of, for example, a soft and / or elastic material that can change its surface composition from one texture (ie, haptic substrate) to another. The haptic substrate, in one embodiment, provides a first pattern in response to the first activation signal. Alternatively, the haptic substrate may provide a second pattern in accordance with the second activation signal. A deformation mechanism is used to change the texture of the flexible surface from the first surface feature to the second surface feature.

1A shows a three-dimensional (3D) diagram illustrating a haptic device 100 using a haptic substrate and a flexible surface in accordance with one embodiment of the present invention. The device 100 includes a flexible surface layer 102, a haptic substrate 104, and a deformation mechanism 106. It should be noted that the device 100 may be a user interface device, such as an interface for a cell phone, a personal digital assistant, an automatic data input system, and the like. Furthermore, it should be noted that the basic concepts for the exemplary embodiments of the present invention will not change even if one or more blocks (circuits or layers) are added to the device 100 or one or more blocks are removed from the device 100. .

The flexible surface layer 102 is, in one example, made of a soft and / or elastic material, such as silicone rubber, also known as polysiloxane. The function of the flexible surface layer 102 is to change its surface form or texture upon contact with the physical pattern of the haptic substrate 104. The physical pattern of the haptic substrate 104 is variable, where one or more of the local features 110-124 can be raised or lowered to represent a specification that affects the surface of the flexible surface layer 102 upon contact. Because. Once the physical pattern of the haptic substrate 104 is determined, the texture of the flexible surface layer 102 can be identified as the physical pattern of the haptic substrate 104 by changing its surface texture. It should be noted that the deformation from one texture to another texture of the flexible surface layer 102 can be controlled by the deformation mechanism 106. For example, when the deformation mechanism 106 is not activated, the flexible surface layer 102 maintains its smooth configuration floating or lying on the haptic substrate 104. However, when the deformation mechanism 106 is activated and the haptic substrate 104 contacts the flexible surface layer 102 to generate a similar pattern on the top surface of the flexible surface layer 102, the The surface composition is transformed or changed from a smooth configuration to a rough one.

Alternatively, the flexible surface layer 102 is a flexible touch sensitive surface capable of receiving user input. The flexible touch sensitive surface can be separated into several regions, where each region of the flexible touch sensitive surface can receive input when the region is touched or pressed by a finger. In one embodiment, the flexible touch sensitive surface includes a sensor capable of detecting a nearby finger and capable of waking up or turning on the device. The flexible surface layer 102 can also include a flexible display that can be transformed with the flexible surface layer 102. It should be noted that various flexible display technologies, such as organic light-emitting diodes (OLEDs), organic materials, or polymer thin film transistors (TFTs), can be used to manufacture flexible displays.

Haptic substrate 104 is a surface reconfigurable haptic device that can change its surface pattern in response to one or more pattern activation signals. In addition, the haptic substrate 104 may be referred to as a haptic mechanism, a haptic layer, a tactile device, or the like. Haptic substrate 104, in one embodiment, includes several tactile or haptic regions 110-124, each of which can be independently controlled and activated. Since each tactile region can be activated independently, a unique surface pattern of the haptic substrate 104 can be constructed in response to the pattern activation signal. In other embodiments, all haptic regions are further separated into several haptic bits, each bit being independently excited or activated or deactivated.

The haptic substrate 104 or haptic mechanism may, in one embodiment, operate to provide haptic feedback in response to an activation command or signal. The haptic substrate 104 provides several tactile or haptic feedbacks, where one tactile feedback is used for surface modification while the other tactile feedback is used for input validation. Input confirmation is haptic feedback that informs the user about the selected input. The haptic mechanism 104 may be, for example, oscillating, vertical displacement, horizontal displacement, push / pull technique, air / fluid bag, local deformation of material, resonating Mechanical devices, piezoelectric materials, "MEMS" (micro-electro-mechanical systems) devices, thermal fluid pockets, MEMS pumps, variable porosity membranes, laminar flow modulation, etc. It can be implemented by a variety of techniques.

Haptic substrate 104 is, in one embodiment, made of a semi-flexible or semi-rigid material. In one embodiment, the haptic substrate should be more rigid than the flexible surface 102, whereby the surface texture of the flexible surface 102 can be identified by the surface pattern of the haptic substrate 104. The haptic substrate 104 may include, for example, one or more actuators that may be constructed from fibers (or nanotubes) of electroactive polymers (“EAP”), piezoelectric elements, fibers of shape memory alloy (“SMA”), and the like. Include. EAP, also known as living muscle or artificial muscle, can change its shape in response to the application of voltage. The physical form of an EAP can be modified when it receives great force. EAPs are Electrostrictive Polymers (EP), Dielectric elastomers (DE), Conducting Polymers, Ionic Polymer Metal Composites (IPMC), Responsive Gels, Bucky Gel Actuators, or the aforementioned EAPs. It can be constructed from a combination of materials.

Shape Memory Alloy (SMA), also known as memory metal, is another type of material that can be used to construct the haptic substrate 104. SMA may be made of copper-zinc-aluminum, copper-aluminum-nickel, nickel-titanium alloys or a combination of copper-zinc-aluminum, copper-aluminum-nickel, and / or nickel-titanium alloys. The characteristic of an SMA is that when its original form is modified, it restores its original form according to the ambient temperature and / or the surrounding environment. It should be noted that this embodiment may combine EAP, piezoelectric elements, and / or SMA to realize a particular haptic feel.

The deformation mechanism 106 provides a pulling force and / or a pushing force to move the element of the haptic substrate 104 to deform the flexible surface 102. For example, if the deformation mechanism 106 creates a vacuum between the flexible surface 102 and the haptic substrate 104, the flexible surface 102 is pushed against the haptic substrate 104 such that the flexible surface 102 is a flexible surface. The texture of 102 is represented according to the surface pattern of the haptic substrate 104. In other words, once the surface pattern of the haptic substrate 104 is generated, the flexible surface is pulled or pushed against the haptic substrate 104 to reveal the pattern of the haptic substrate 104 through the deformed surface of the flexible surface 102. . In one embodiment, the haptic substrate 104 and the deformation mechanism 106 are constructed of the same or substantially the same layer.

Upon receipt of the first activation signal, the haptic substrate 104 generates a first surface pattern. After surface pattern formation of the haptic substrate 104, the deformation mechanism 106 is activated to change the surface texture of the flexible surface 102 in response to the surface pattern of the haptic substrate 104. Alternatively, if haptic substrate 104 receives a second activation signal, haptic substrate 104 generates a second pattern.

The haptic substrate 104 further includes several tactile regions, each of which can be independently activated to form a surface pattern of the substrate. In addition, the haptic substrate 104 may generate confirmation feedback for confirming an input selection input by the user. The deformation mechanism 106 is configured to modify the surface texture of the flexible surface 102 from the first surface feature to the second surface feature. It should be noted that the haptic device further includes a sensor capable of activating the device when the sensor detects a touch on the flexible surface 102. The deformation mechanism 106 may be a vacuum generator that may cause the flexible surface 102 to collapse with respect to the first surface pattern, thereby modifying its surface configuration according to the configuration of the first pattern of the haptic substrate 104.

1B illustrates a 3D diagram illustrating a haptic device 130 using a haptic substrate and a flexible surface in accordance with one embodiment of the present invention. Device 130 includes a flexible surface 102, a haptic substrate 134, and a deformation mechanism 106. It should be noted that the basic concept for the exemplary embodiment of the present invention will not change even if additional blocks (circuits or layers) are added to the device 130 or additional blocks are removed from the device 130.

The haptic substrate 134 is similar or substantially similar to the haptic substrate 104 illustrated in FIG. 1A except that the haptic regions 136 and 139 are activated. Tactile regions 136 and 139 are raised in the z-axis direction. Upon receipt of one or more activation signals, the haptic substrate 134 identifies the surface pattern according to the activation signal. Haptic substrate 134 provides a pattern identified by activating various tactile regions, such as regions 136 and 139 to generate a pattern. It should be noted that the tactile areas 136 and 139 mimic two buttons or keys. In another embodiment, the tactile region 136 or 139 includes several haptic bits in which each bit can be controlled for activation or deactivation.

1C shows a 3D diagram illustrating a haptic device 140 using a haptic substrate and a flexible surface in accordance with one embodiment of the present invention. Device 140 includes a flexible surface 142, haptic substrate 134, and deformation mechanism 106. It should be noted that the haptic substrate 134 and the deformation mechanism 106 are the same or substantially the same device. Furthermore, it should be noted that the basic concepts for the exemplary embodiments of the present invention will not change even if additional blocks are added to or removed from the device 140.

When the deformation mechanism 106 is activated, the flexible surface 142 collapses over the haptic substrate 134 with two activated tactile regions 136 and 139, as illustrated in FIG. 1B, resulting in two bumps 156. And 159). Bumps 156 and 159, in one example, mimic two buttons. For example, the haptic substrate 134 may detect a contact at the button 156 or 159 and provide haptic feedback to determine which button was pressed. Alternatively, the haptic substrate 134 may generate one of a number of unique physical patterns in response to one or more signals. As such, the flexible surface 102 may be reconstructed into a different pattern depending on the pattern or patterns provided by the haptic substrate 134. The surface texture of the flexible surface may consist of a telephone keypad, calculator buttons, computer keypad, radio panel, PDA interface, and the like.

1D illustrates an example of haptic substrates 150-170 illustrating different patterns generated by the haptic effect in accordance with one embodiment of the present invention. Substrate 150 illustrates an array of tactile regions 152 in which each region can be independently controlled and activated. The substrate 160 illustrates that nine tactile regions 162 disposed at the center of the substrate 160 are activated and raised. In addition, the two sections 172-174 of the haptic substrate 170 were raised to provide different surface patterns. It should be noted that various different patterns may be generated from the array of tactile regions in response to various control signals. Furthermore, it should be noted that the substrate may vary over time, which also changes the flexible surface 102.

1E illustrates a haptic device 180 using a haptic substrate and a flexible surface in accordance with one embodiment of the present invention. Device 180 includes a flexible screen and an array of actuators 186, which can combine the haptic feel with computer graphics. The flexible screen, for example, illustrates the topography and / or texture of mountain 182 as well as the feel or texture of the water of lake 184. When the computer displays graphical representations of mountainous terrain and lakes, device 180 provides a realistic feel of textures, such as mountainous terrain for mountains and water for lakes. For example, the user may feel like water when he touches the lake 184 or feel like rock when he touches the mountain 182. However, if the computer displays another graphical representation, such as a beach, the device 180 will change its surface feature to illustrate the feeling of beach or sand. It should be noted that the haptic substrate 104 can be used to replace the actuator array 186 of the device 180.

2A and 2B illustrate cross-sectional views 200-220 illustrating a haptic texture device having a deformable surface in accordance with one embodiment of the present invention. The drawing 200 includes a flexible or deformable surface 202, a predefined substrate 204, and a deformation mechanism 206. In one embodiment, the drawing 200 may be a "liquid crystal display" (LCD) or other type of flat panel displays capable of displaying images visible by the user, FIGS. 2A and 2B. Includes a display, not shown. It should be noted that the basic concept for the exemplary embodiment of the present invention will not change even if one or more layers are added to the drawings 200 or 220.

200 illustrates a situation in which the deformation mechanism 206 is not activated and the flexible surface 202 floats on top of the substrate 204 while maintaining the original smooth surface. FIG. 220 shows a situation in which the deformation mechanism 206 is activated and the flexible surface 222 collapses towards the predefined substrate 204 to mold the surface 222 in a pattern provided by the substrate 204. Thus, the flexible surface 202 changes its surface configuration from a smooth configuration to a rough configuration depending on the state of the deformation mechanism 206. In another embodiment, the substrate 204 and the deformation mechanism 206 are combined into one haptic layer that provides deformation functionality as well as surface patterns.

In one embodiment, the predefined tactile substrate 204 may be reshaped or re-patterned with the addition of a haptic control mechanism that raises or lowers a specific area of the tactile substrate surface. Deformation of the substrate surface can be realized by using haptic devices, such as piezoelectric materials, "Micro-Electro-Mechanical Systems" (MEMS) devices, thermal fluid bags, MEMS pumps, resonant devices, variable porous membranes, laminar flow modulation, and the like. Can be. Remodeling or re-patterning of the substrate is, in one embodiment, an unrestricted surface form, such as raised edges that mimic a virtual button or slider, or centering detents that mimic a virtual keypad, or Allow texture

2C and 2D illustrate cross-sectional views 230-240 illustrating another example of a haptic device having a deformable surface in accordance with one embodiment of the present invention. 230 includes a flexible or deformable surface 232, a haptic substrate 234, and a deformation mechanism 236. 230 shows a situation where the deformation mechanism 236 is not activated and the flexible surface 232 maintains the original smooth surface. Upon activation, the haptic substrate 244 generates a pattern similar to the pattern provided by the predefined substrate 204. Haptic substrate 244, in one embodiment, generates pattern (s) using haptic feedback. Haptic feedback may also be referred to as haptic effect, tactile feedback, haptic effect, force feedback, or vibrotactile feedback.

240 illustrates a situation in which deformation mechanism 236 is activated and flexible surface 242 collapses toward haptic substrate 244 to mold its surface in a pattern provided by substrate 244. Accordingly, the flexible surface 242, in one embodiment, changes its surface configuration from a smooth configuration to a rough configuration in response to the state of the deformation mechanism 236. The pattern (s) generated by the haptic substrate 244 alter the texture of the flexible surface 242. Furthermore, it should be noted that the flexible surface 202 or 232 or 242 may be a touch sensitive surface capable of receiving input (s) from a user. In another embodiment, haptic substrate 244 and deformation mechanism 236 are combined into one haptic layer that can provide unique patterns as well as surface deformation.

Types of textures include, but are not limited to, varying degrees of rough and smooth texture, hard and soft textures, or hot and cold textures. Textures can be applied to, but not with, virtual objects or virtual surfaces, such as the feel of sandpaper and / or corduroy images, or interactions such as dragging, pulling, pushing, pinching, expanding, erasing, drawing, etc. It is not limited. It should be appreciated that the various texture types provided by the haptic system can be controllable and user definable textures by touching the surface. In another embodiment, the haptic device or system may also provide a user with a confirming actuation to confirm interaction, such as activating, navigating, and / or controlling virtual buttons, switches, and / or sliders. to provide.

3A and 3B illustrate cross-sectional views 300-320 illustrating another example of a haptic device using a deformable surface in accordance with one embodiment of the present invention. Drawing 300 includes a flexible or deformable surface 302, a predefined substrate 304, and a deformation mechanism 306, which includes a bump 308. In one embodiment, the drawing 300 includes a display, not shown in FIGS. 3A and 3B, which may be an LCD or other type of flat panel display capable of displaying an image visible by the user. It should be noted that the basic concept for the exemplary embodiment of the present invention will not change even if one or more layers are added to the drawings 300 or 320.

300 illustrates a situation in which the deformation mechanism 306 is not activated and the flexible surface 302 floats on top of the substrate 304 while maintaining the original smooth surface. 320 illustrates a situation where the deformation mechanism 306 is activated and the flexible surface 322 collapses onto a predefined substrate 304 to mold the surface 322 in a pattern provided by the substrate 304. . Thus, the flexible surface 322 changes its surface configuration from the smooth configuration to the rough configuration by the bump 328. In another embodiment, the substrate 304 and the deformation mechanism 306 are combined into one haptic layer that can provide not only surface patterns but also deformation functions.

3C and 3D illustrate cross-sectional views 340-360 illustrating another example of a haptic device using a deformable surface in accordance with one embodiment of the present invention. The figure 340 includes a flexible or deformable surface 342, a predefined substrate 344, and a deformation mechanism 346, which includes a sawtooth 348. Figure 340 illustrates a situation where the deformation mechanism 346 is not activated and the flexible surface 342 floats on top of the substrate 344 while maintaining the original smooth surface. The diagram 360 illustrates a situation in which the deformation mechanism 346 is activated and the flexible surface 362 collapses onto a predefined substrate 344 to mold the surface 362 in a pattern provided by the substrate 344. Indicates. Accordingly, the flexible surface 362 changes its surface configuration from smooth to rough by the serrated 368. In another embodiment, the substrate 344 and the deformation mechanism 346 are combined into one haptic layer that can provide deformation as well as patterns.

It should be noted that the predetermined, textured substrate under the deformable surface may or may not conform by changing the input energy or signal. For example, when a vacuum chamber is created between layers or objects, the space around the object collapses towards the point where the surface matches the shape of the underlying object. Furthermore, deformation of the surface may occur across the entire surface for uniform texture or at various touch points by transmitting controlled controlled input energy towards the substrate material. Different textures can occur across several touch points. For example, a user dragging two fingers across a touch surface may feel a smooth texture with one finger while a rough texture with another finger.

3E and 3F show 3D views 370-380 illustrating another example of a haptic device using a deformable surface in accordance with one embodiment of the present invention. Drawing 370 includes a predefined transparent grille 372, a flexible or deformable transparent material 374, and a transparent substrate 376, which includes a plurality of openings 378. In one embodiment, the drawing 370 includes a display, not shown in FIGS. 3E and 3F, which may be an LCD or other type of flat panel display capable of displaying an image visible by the user. It should be noted that the basic concept for the exemplary embodiment of the present invention will not change even if one or more layers are added to the figure 370 or 380.

FIG. 370 illustrates a situation in which the transparent substrate 376 is not activated and the deformable transparent material 374 maintains its original state disposed between the grill 372 and the substrate 376. Figure 380 shows that the deformation mechanism or substrate 376 is activated and the deformable material 374 is partially pushed through the opening or hole 386 of the grill 382 to " machine-made goose bumps. made goosebumps) "(384). As such, the surface of the grill 372 changes its surface configuration from the rough configuration by the sawtooth 378 to the minibumps configuration. In another embodiment, the substrate 374 and the deformable material 374 are combined into one haptic layer that can provide deformation as well as patterns.

Haptic substrates and / or haptic mechanisms as described above are used to control the texture of the flexible surface. Combinations of different haptic substrates and / or mechanisms can also be used to realize the best haptic results in haptic user interface devices. The next embodiment illustrated by FIGS. 4-8 is a further example of a haptic device or haptic actuator that can be used to generate haptic feedback for controlling surface texture as well as input validation.

4A illustrates a haptic or haptic region 410 that generates a haptic effect using piezoelectric material in accordance with one embodiment of the present invention. Region 410 includes an electrically insulating layer 402, piezoelectric material 404, and wire 406. The electrically insulating layer 402 has a top surface and a bottom surface, the top surface configured to receive input. The grid or array of piezoelectric materials 404 is, in one embodiment, configured to form a piezoelectric or haptic layer, which also has top and bottom surfaces. The top surface of the piezoelectric layer is disposed adjacent to the bottom surface of the electrically insulating layer 402. Each region 410 includes at least one piezoelectric material 404, which is used to generate a haptic effect independent of other piezoelectric regions 410 of the piezoelectric layer. In one embodiment, several adjacent or neighboring regions 410 may generate several haptic effects in response to several touches that are substantially simultaneous. In another embodiment, each of the regions 410 may have a unique piezoelectric material to initiate a unique haptic feel.

It should be noted that the tactile touch panel including the electrically insulating layer 402 and the piezoelectric layer further includes a display, in some embodiments, not shown in the figures. This display can be coupled to the bottom surface of the piezoelectric layer and can project an image that can be seen from the top surface of the electrically insulating layer 402. It should be noted that the display may be a flat panel display or a flexible display. The piezoelectric material 404 is, in one embodiment, substantially transparent and small. The shape of the piezoelectric material 404 deforms in response to, for example, a potential applied through the wire 406.

During the manufacturing process, the piezoelectric film is printed to include an array or grid of piezoelectric regions 410. In one embodiment, a film of region 410 containing piezoelectric material is printed on the sheet in a cell grid arrangement. The film further includes wiring for directly addressing all regions 410 of the device using electrical control signals. Region 410 may be stimulated using, for example, an edge or back mounted electronic device. Piezoelectric materials may include crystals and / or ceramics, such as quartz (SiO ₂ ).

4B illustrates a tactile or haptic region 410 that generates a haptic effect in accordance with one embodiment of the present invention. During operation, when a potential is applied to the piezoelectric material 405 through the wire 406, the piezoelectric material 405 is formed from the original form of the piezoelectric material 404 as indicated in FIG. 4A. 405) into an expanded form. Deformation of the piezoelectric material 405 causes the electrical insulation layer 403 to deform or bend from the original state of the layer 402 as indicated in FIG. 4A. In another embodiment, the piezoelectric material 405 returns to its original state as soon as the dislocation is removed. It should be noted that the basic concept of the present invention does not change even if an additional block (circuit or mechanical device) is added to the device illustrated in FIGS. 4A and 4B. If the piezoelectric material is replaced with another material, such as "shape memory alloys" (SMA), that material can retain its deformed form for some time after the dislocation is removed. It should be noted that the basic concept for the embodiment of the present invention does not change even if a different material than the piezoelectric actuator is used. As such, a grid of piezoelectric actuators can be used to control the surface texture for the touch sensitive surface of the interface device.

4C illustrates another embodiment of a tactile or haptic region or cell 410 that generates a haptic effect using a Micro-Electro-Mechanical Systems (MEMS) device 452 in accordance with one embodiment of the present invention. A diagram 450 illustrating the diagram. Drawing 450 depicts block 460 representing the top surface of cell 410. Cell 410 includes a MEMS device 452. In one embodiment, the MEMS device 452 is virtually transparent, whereby image projection from the display, not shown in FIG. 4C, can be viewed through block 460. It should be noted that each of the haptic cells 410 is coupled to at least one wire to easily generate a haptic effect.

MEMS can be considered as the integration of mechanical devices, sensors, and electronics in silicon or organic semiconductor substrates, which can be manufactured through existing microfabrication processes. For example, electronic devices can be fabricated using semiconductor processing procedures, and micromechanical devices can be fabricated using compatible microfabrication procedures. In one embodiment, the grid or array of MEMS devices 452 is made of several cantilever-springs. The grid of cantilever-springs can be etched using MEMS fabrication techniques. In addition, electrical wiring for stimulating or driving the cantilever-spring can also be etched directly onto the surface of the MEMS device 452, whereby every individual MEMS device can be addressed correctly. MEMS cantilevers can be stimulated using a resonant drive (for vibration-tactile) or direct actuation (kinesthetics).

4D illustrates a side view of the MEMS device 452, where the MEMS device 452 deforms the MEMS device 464 from the original state of the MEMS device 452 when a potential is applied across the MEMS device. Can be stimulated or deformed. The displacement 454 between the original state and the modified state depends on the composition of the material used and the size of the MEMS device 452. Although smaller MEMS devices 452 are easier to process, they provide smaller displacements 454. In one embodiment, the cantilever-spring may be made of piezoelectric material. It should be noted that the operation of the piezoelectric material is generally a vibration-tactile feel. Furthermore, it should be noted that the piezoelectric material can be used as a sensor for sensing the position and pressure of the fingertip.

MEMS device 452, in another embodiment, uses SMA instead of cantilever-spring as mentioned above. The operation generated by the MEMS device 452 using SMA provides motor sensory operation. SMA, also known as memory metal, may be made of a copper-zinc-aluminum, copper-aluminum-nickel, nickel-titanium alloy, or a combination of copper-zinc-aluminum, copper-aluminum-nickel, and / or nickel-titanium alloy. . Upon deformation from the original form of the SMA, the SMA regains its original form according to the ambient temperature and / or ambient environment. It should be noted that the present invention can realize a particular haptic feel by combining piezoelectric elements, cantilever-springs, and / or SMAs. As such, a grid of MEMS device 452 can be used to control the surface texture for the touch sensitive surface of the interface device.

5A is a side view of an interface device 500 illustrating an array of haptic cells or tactile regions 502 having a thermal fluid bag 504 in accordance with one embodiment of the present invention. Device 500 includes an insulation layer 506, a haptic layer 512, and a display 508. The top surface of the insulation layer 506 can receive input from the user, while the bottom surface of the insulation layer 506 is disposed adjacent to the top surface of the haptic layer 512. The bottom surface of the haptic layer 512 is disposed adjacent to the display 508, where the haptic layer 512 and the insulating layer 506 can be substantially transparent, whereby the object or image displayed on the display 508 Can be viewed through the haptic layer 512 and the insulating layer 506. It should be noted that the display 508 is not a necessary component for the interface device to function.

Haptic layer 512 includes, in one embodiment, a grid of fluid filled cells 502 that further includes at least one thermal fluid bag 504 and associated activation cells 510. It should be noted that each of the fluid filling cells 502 may include several thermal fluid bags 504 and associated activation cells 510. In another embodiment, the fluid filling cell 502 includes several associated or shared activation cells 510 whereby initiating different activation cells results in different haptic feeling (s).

The activation cell 510 is, in one embodiment, a heater capable of heating the associated thermal fluid bag 504. Various electrical, optical, and mechanical techniques related to the heating technique may be used to process the activation cell 510. For example, various electrically controlled registers may be used in the activation cell 510, which may be implanted in the haptic layer 512 during processing. Alternatively, an optical stimulator, such as an infrared laser, can be used as the activation cell 510 for heating the thermal fluid bag 504. The optical stimulator may be mounted at the edge of the interface device, for example. It should be noted that the activation cell 510 may be any type of optical or radioactive stimulator as long as it can perform the function of the heating device. The activation cell 510 may also include a back mounted thermal stimulator, a technique similar to the hot plasma displays commonly found in flat panel plasma TVs.

The device 500 further includes a set of control wires, not shown in FIG. 5A, wherein each of the activation cells 510 is coupled to at least one pair of wires. The wire is configured to transmit an activation / deactivation control signal used to drive the activation cell 510. It should be noted that each of the fluid filling cells 502 is addressable using signals from a wire or wireless network. Display 508 may, in one aspect, be a flat panel display or a flexible display. In another embodiment, the physical location of the display 508 is interchangeable with the haptic layer 512. In addition, the thermal fluid bag 504 may be activated by a piezoelectric grid in one embodiment.

Thermal fluid bag 504 includes, in one embodiment, a fluid having physical properties of low specific heat and high thermal expansion. Examples of such fluids include glycerin, ethyl alcohol and the like. Thermal fluid bag 504 may generate several localized strains in response to various touches received by insulating layer 506. Each localized deformation is created by a heated thermal fluid bag 504, where heat is generated by an associated activation cell 510. In one embodiment, the thermal fluid bag 504 changes its physical shape according to the fluid temperature of the bag. In another embodiment, the fluid filling cell 502 has an active cooling system, which is used to restore the expanded form of the thermal fluid bag 504 to its original form after it has been deactivated. do. Control of fluid temperature affects the haptic bandwidth. Rapid rise in fluid temperature and rapid heat dissipation of the fluid improve the haptic bandwidth of the thermal fluid bag.

The physical size of each of the fluid cells 502 may also affect cell performance for generating haptic feeling (s). For example, if the size of the fluid cell 504 is smaller than 1/2 fingertip, the performance of the cell 504 is improved, with smaller cells not only allowing rapid heat dissipation but also rapid temperature rise for the fluid in the cell. Because it makes. In another embodiment, a thermal plastic bag filled with plastic fluid is used in place of the thermal fluid bag 504 filled with heat sensing fluid to enhance the haptic effect. The use of thermal plastic bags filled with fluid, such as plastic, can cause high thermal plastic deformation. For example, one type of plastic fluid is polyethylene. In addition, the thermo plastic bag can provide a different and unique haptic feel to the user. In other embodiments, some new fluids, such as electrorheological and / or magnetorheological fluids, may be used in place of the thermal fluid of the thermal fluid bag 504. The thermal fluid bag 504 filled with electro-fluidic fluid may be stimulated by a local or remote electrical field, while the thermal fluid bag 504 filled with magnetorheological fluid may be stimulated by a local or remote magnetic field. Can be.

5B is a side view of an interface device 550 illustrating an array of haptic cells 502 using a thermal fluid bag 554 in accordance with one embodiment of the present invention. Device 550 also represents activated thermal fluid bag 554 and activated activation cell 560. During operation, the thermal fluid bag 554 increases its physical volume (or size) from the original state 556 to the expanded thermal fluid bag 554 when the activation cell 560 is activated. When activation cell 560 is activated, activation cell 560 provides heat 562 to thermal fluid bag 554 or 556 to expand the size of thermal fluid bag 554 or 556. Due to the expansion of the thermal fluid bag 554, a localized portion 552 of the insulating layer 506 is created. As soon as the fluid temperature of the thermal fluid bag 554 cools down, the size of the thermal fluid bag 554 returns to its original state 556. The change between the original size of thermal fluid bag 556 and the expanded size of thermal fluid bag 554 creates a haptic effect. It should be noted that the activation cell 560 may be an optical heater, such as an electric heater or an infrared stimulator. As such, an array of haptic cells using thermal fluid bag 552 may be used to control the surface texture for the touch sensitive surface of the interface device.

6A is a side view of an interface device 600 illustrating an array of MEMS pumps 602 in accordance with one embodiment of the present invention. An array of MEMS pumps 602 may be used to implement tactile areas for controlling surface textures. 600 includes an insulating layer 606 and a haptic layer 612. The top surface of the insulating layer 606 is configured to receive touches or touches from the user, while the bottom surface of the insulating layer 606 is disposed adjacent to the top surface of the haptic layer 612. The bottom surface of the haptic layer 612 is disposed adjacent to the display (not shown in FIG. 6A) in one embodiment, where the haptic layer 612 and the insulating layer 606 may be substantially transparent, whereby The object or image displayed on the display may be viewed through the haptic layer 612 and the insulating layer 606. Note that the display is not a necessary part for the interface device to function.

Haptic layer 612 includes a grid of MEMS pumps 602 that, in one embodiment, further include at least one bag 604. Each MEMS pump 602 includes a pressure valve 608 and a pressure reducing valve 610. The pressure valve 608 is coupled to the inlet tube 614, while the pressure reducing valve 610 is coupled to the outlet tube 616. In one embodiment, the infusion tube 614 under high liquid pressure is used to inflate the bladder 604 by pumping liquid through the pressure valve 608. Likewise, the low pressure discharge tube 616 is used to release liquid through the pressure reducing valve 610 to release pressure from the bag 604. It should be noted that the MEMS pump 602 may be coupled to the same pressurized liquid reservoir. Furthermore, it should be noted that the pressure valve 608 and the pressure reducing valve 610 can be combined into one single valve for both the inlet tube 614 and the outlet tube 616. Furthermore, it should be noted that the injection tube 614 and the discharge tube 616 can also be combined into one tube.

The grid of the MEMS pump 602 includes an array of pressure valves 608 and pressure reducing valves 610, which are pressurized to engage with a back or side mounted liquid reservoir, while the pressure reducing valve 610 ) Is coupled to the back or side mounted pressure-reducing liquid reservoir at low pressure. The valves 608-610 control filling and emptying the liquid bag 604 of the MEMS pump 602 to produce localized strain. The advantages of using a pressurized liquid reservoir are that it quickly deforms the surface of the insulating layer 606 and maintains deformation with or without minimal energy consumption (or consumption). It should be noted that the MEMS pump 602 can achieve liquid-like results using pressurized air or other gases.

Device 600 further includes a set of control wires 617-618 that can be used to control pressure valve 608 and pressure reducing valve 610, respectively. It should be noted that each valve of the haptic layer 612 is addressable using electrical signals transmitted from a wired or wireless network.

6B illustrates two views of interface devices 620 and 650 with an array of MEMS pumps 604 in accordance with one embodiment of the present invention. Device 620 illustrates an activated bladder 623 that includes an activated inlet valve 630 and an inactivated outlet valve 632. During operation, bladder 623 increases its physical volume (or size) from its original state 624 to inflated bladder 623 when infusion valve 630 is activated. When the injection valve 630 is activated (or opened) in response to an electrical signal from the wire 628, the injection tube 625 pumps the liquid 626 from the pressurized reservoir into the bag 623. Due to the expansion of the pocket 623, a localized strain 622 of the insulating layer 606 is created.

The device 650 illustrates that the activated MEMS pump returns from the inflated state of the bag 623 to the original state of the bag 653. When the pressure reducing valve 660 is activated, the pressure reducing valve 660 discharges the liquid 656 from the bag 653 to a low pressurized discharge 654. It should be noted that the pressure reducing valve 660 is controlled by at least one control signal through the wire 658. The change between the original size of the pocket 604 and the expanded size of the pocket 623 creates a haptic effect. As such, an array of MEMS pumps 602 may be used to control the surface texture for the touch sensitive surface of the interface device.

7 illustrates a side view of an interface device 700 having an array of haptic cells 702 using a variable porous membrane 710 in accordance with an embodiment of the present invention. Porous membrane 710 may be used to implement tactile regions for controlling the surface texture. Device 700 includes an insulating layer 706 and a haptic layer 712. The top surface of the insulation layer 706 is configured to receive input from the user, while the bottom surface of the insulation layer 706 is disposed adjacent to the top surface of the haptic layer 712. The bottom surface of the haptic layer 712 is disposed adjacent to the display (not shown in FIG. 7) in one embodiment, where the haptic layer 712 and the insulating layer 706 can be substantially transparent, whereby The object or image displayed on the display may be viewed through the haptic layer 712 and the insulating layer 706. It should be noted that the display is not a necessary part for the interface device to function.

Haptic layer 712 includes, in one embodiment, a grid of haptic cell 702, an infusion valve 703, and an outlet valve 704. Haptic cell 702 is, in one embodiment, a bag that may contain a fluid. Haptic layer 712 is similar to haptic layer 612 shown in FIG. 6A, except that haptic layer 712 uses a porous membrane. Each inlet valve 703 is controlled by control signal (s) transmitted by wire 713, while each outlet valve 704 is controlled by an electrical signal transmitted through wire 714. Each inlet valve 703 or outlet valve 704 utilizes at least one porous membrane 710. Porous membrane 710 is coupled (or confronted) to the liquid reservoir, each membrane 710 being configured to control how much liquid must enter and / or pass through membrane 710. An advantage of using a porous membrane is that it maintains deformation of the insulating layer 706 with or without minimal energy consumption. As such, a grid of haptic cells using the variable porous membrane 710 can be used to control the surface texture for the touch sensitive surface of the interface device.

8 is a side view of an interface device 800 having an array of haptic cells 802 using various resonant devices in accordance with one embodiment of the present invention. An array of haptic cells 802 can be used to implement tactile regions for controlling the surface texture. Device 800 includes an insulation layer 806 and a haptic layer 812. The top surface of the insulation layer 806 is configured to receive input from the user, while the bottom surface of the insulation layer 806 is disposed adjacent to the top surface of the haptic layer 812. The bottom surface of the haptic layer 812 is disposed adjacent to the display (not shown in FIG. 8) in one embodiment, where the haptic layer 812 and the insulating layer 806 may be substantially transparent, thereby The object or image displayed on the display may be viewed through the haptic layer 812 and the insulation layer 806. It should be noted that the insulating layer 806 may be flexible, thereby providing desirable relief information on its surface.

Haptic layer 812, in one embodiment, includes a grid of haptic cells 802, each cell 802 further adding a permanent magnet 804, an electromagnet 810, and two springs 808. Include. Haptic layer 612 is similar to haptic layer 612 shown in FIG. 6A, except that haptic layer 612 uses a MEMS pump while haptic layer 812 uses a resonant device. Haptic cell 802, in one embodiment, generates a haptic effect using a mechanical retractable resonant device. The mechanically openable resonant device vibrates in response to the natural frequency, which may be generated by the side mounted resonant stimulator 816 or the back mounted resonant stimulator 814. In one embodiment, a resonant grid is used to form the haptic layer 812. Each cell 802 is constructed using a mechanical resonant element, such as a Linear Resonant Actuator (LRA) or MEMS spring. However, each cell 802 is configured to have a slightly different resonant frequency and high Q (high amplification at resonance and narrow resonant frequency band). As such, each cell 802 can be stimulated using mechanical pressure waves that occur at the edge of the sheet. The haptic effect can also be generated by piezoelectric or other high bandwidth actuators.

Cell 802, in another embodiment, includes one spring 808. In another embodiment, cell 802 includes more than two springs 808. Each spring 808 is configured to respond to a specific range of frequencies, whereby each spring 808 can generate a unique haptic feel. As such, a grid of haptic cells using various resonant devices can be used to control the surface texture for the touch sensitive surface of the interface device. For example, if the displacement of the haptic mechanism is large enough, such as 200 micrometers or more, movement by low frequency (or tactile vibration), such as less than 50 Hz, should produce sufficient relief information.

Exemplary embodiment (s) of the present invention include various processing steps to be described below. The steps of an embodiment may be implemented in machine or computer executable instructions. Instructions may be used to cause a general purpose or special purpose system or controller, programmed as instructions, to perform the steps of the embodiment (s) of the present invention.

9 is a flow diagram illustrating a process 900 for providing a haptic device and a haptic texture using a deformable surface in accordance with one embodiment of the present invention. At block 902, the process receives a first substrate activation signal. In one embodiment, the first substrate activation signal is used to identify a surface pattern associated with the first substrate. After block 902, the process proceeds to the next block.

At block 904, the process generates a first pattern of the haptic substrate via haptic feedback in response to the first substrate activation signal. In one embodiment, the process selects one of a number of surface patterns in accordance with the first substrate activation signal. Alternatively, the process independently activates several tactile regions of the haptic substrate in response to the first substrate activation signal to produce a predefined pattern. After block 904, the process proceeds to the next block.

At block 906, the process generates a force that can activate the deformation generator to change the shape of the flexible surface layer. In one embodiment, the process activates the vacuum generator to create a vacuum between the flexible surface layer and the haptic substrate such that the flexible surface layer collapses with respect to the first pattern of the haptic substrate. After block 906, the process proceeds to the next block.

At block 908, the process reconstructs or changes the surface texture of the flexible surface layer from the first surface feature to the second surface feature according to the first pattern. In one embodiment, the process pushes the flexible surface layer against the first pattern to identify the flexible surface layer as a first pattern or first topography. Upon detecting a contact to the flexible surface, the process, in one embodiment, generates an input signal in response to the contact and transmits the input signal to the processing unit. In addition, the process can receive user input through touch on a flexible surface and provide tactile feedback to confirm user input. It should be noted that the step of reconstructing the surface texture of the flexible surface layer involves changing from a smooth surface to a rough surface. In another embodiment, the process may generate a second pattern of the haptic substrate in response to the second activation signal and may apply a force to the flexible surface layer to identify the second pattern of the haptic substrate. Upon identification of the second pattern, the flexible surface changes its surface texture from the second surface feature to the third surface feature in response to the second pattern. After block 908, the process ends.

While particular embodiments of the invention have been shown and described, those skilled in the art will clearly appreciate that changes and modifications can be made without departing from the invention and its broader aspects, based on the teachings herein. Accordingly, the appended claims are intended to embrace within their scope all such changes and modifications that fall within the true spirit and scope of exemplary embodiment (s) of the invention.

Claims (30)

As a haptic device,
A flexible surface capable of reconstructing its surface features;
A haptic substrate coupled to the flexible surface and configured to provide a first pattern in response to a first activation signal; And
A deformation mechanism coupled to the flexible surface and configured to deform the flexible surface to a first surface feature according to the first pattern
Haptic device comprising a. The method of claim 1,
And a sensor capable of activating the device when detecting a touch on the flexible surface. The method of claim 1,
The deformation mechanism coupled to the flexible surface and configured to deform the flexible surface to the first surface feature further converts the flexible surface from a second surface feature to the first surface feature in response to the first pattern. Haptic device comprising. The method of claim 1,
The flexible surface is a touch sensitive surface capable of sensing a touch on the surface;
The haptic substrate can provide a second pattern in response to a second activation signal. The method of claim 4, wherein
The haptic substrate is comprised of a piezoelectric material. The method of claim 4, wherein
The haptic substrate is one of "MEMS" (micro-electro-mechanical systems) devices, thermal fluid bags, MEMS pumps, resonant devices, variable porosity membranes, and laminar flow modulation. Haptic device configured by. The method of claim 1,
The haptic substrate includes a plurality of tactile regions, each region of which can be independently activated to form the surface shape of the haptic substrate. The method of claim 1,
The haptic substrate can generate confirmation feedback to confirm input selection. The method of claim 1,
And the deformation mechanism is a vacuum generator capable of collapsing the flexible surface with respect to the first pattern to form a surface shape according to the first pattern. As a method of providing a haptic texture surface,
Receiving a first substrate activation signal;
Generating a first pattern of the haptic substrate through haptic feedback in response to the first substrate activation signal;
Activating a deformation generator to generate a deformation force that can change the shape of the flexible surface layer; And
Reconstructing the surface texture of the flexible surface layer to change the surface texture from a first surface feature to a second surface feature according to the first pattern
Haptic texture surface providing method comprising a. The method of claim 10,
Applying a force to the flexible surface layer relative to the first pattern to confirm that the flexible surface layer has a terrain substantially similar to the first pattern. The method of claim 10,
Sensing contact with the flexible surface layer;
Generating an input signal in response to the contact; And
And transmitting the input signal to a processing unit. The method of claim 10,
Generating the first pattern of the haptic substrate further comprises selecting one of a plurality of surface patterns according to the first substrate activation signal. The method of claim 10,
Receiving user input via a touch on the flexible surface layer; And
Providing tactile feedback to confirm the user input. The method of claim 10,
Activating the strain generator to generate the strain force further comprises activating a vacuum generator to generate a vacuum between the flexible surface layer and the first pattern. The method of claim 10,
Reconstructing the surface texture of the flexible surface layer to change the surface texture from the first surface feature to the second surface feature according to the first pattern further comprises changing from a smooth surface to a rough surface. How to Provide. The method of claim 10,
Generating the first pattern of the haptic substrate further includes independently activating a plurality of tactile regions of the haptic substrate in response to the first substrate activation signal to generate a predefined pattern. How to provide a textured surface. The method of claim 10,
Generating a second pattern of the haptic substrate in response to the second activation signal; And
Applying a force to the flexible surface layer against the second pattern of the haptic substrate to change the surface texture of the flexible surface layer from the second surface feature to a third surface feature in response to the second pattern. Haptic texture surface providing method. As a haptic device,
A transparent grill having a predefined pattern of openings;
A deformable haptic material layer coupled to the transparent grill and capable of partially changing its shape according to an activation signal and a predefined pattern of openings; And
A transparent substrate coupled to the deformable transparent material layer and configured to provide haptic force feedback for controlling the deformable transparent material layer according to the transparent grille
Tactile device comprising a. The method of claim 19,
The deformable haptic material layer includes a plurality of flexible haptic actuators. The method of claim 20,
The flexible haptic actuators are haptic device manufactured from one of independently activated electroactive polymers and a shape memory alloy. The method of claim 19,
The surface topography of the transparent grille can be changed from a first surface feature to a second surface feature in response to the activation signal. The method of claim 22,
And wherein the surface topography of the transparent grille can be changed from a first surface feature to a second surface feature, further comprising changing the surface topography of the transparent grille from a smooth texture to a rough texture. The method of claim 19,
And the transparent grille is a touch sensitive surface capable of sensing an input. Haptic interface device,
A display layer operable to display a viewable image;
A touch screen layer disposed over the display layer, the touch screen layer capable of receiving input by sensing one or more surface contacts;
A haptic mechanism layer disposed on the touch screen layer and capable of providing one of a plurality of surface patterns in response to an activation command; And
A flexible touch surface layer disposed over the haptic mechanism layer and configured to change its surface shape according to the surface pattern of the haptic mechanism layer.
Haptic interface device comprising a. The method of claim 25,
And a vacuum generator coupled to the flexible touch surface layer and configured to modify the flexible touch surface layer to identify the surface pattern of the haptic mechanism layer. The method of claim 26,
The haptic mechanism layer includes several tactile regions, each tactile region that can be independently activated. An apparatus for providing a haptic texture surface,
Means for receiving a first substrate activation signal;
Means for generating a first pattern of the haptic substrate via haptic feedback in response to the first substrate activation signal;
Means for activating a deformation generator to generate deformation forces that can change the shape of the flexible surface layer; And
Means for reconstructing a surface texture of the flexible surface layer to change the surface texture from a first surface feature to a second surface feature according to the first pattern
Haptic texture surface providing apparatus comprising a. The method of claim 28,
And means for applying a force to the flexible surface layer relative to the first pattern to confirm that the flexible surface layer has a terrain substantially similar to the first pattern. The method of claim 28,
Means for sensing contact with the flexible surface layer;
Means for generating an input signal in response to the contact; And
And means for transmitting the input signal to a processing unit.

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